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Weld-Up Header Race Kit Chevy Big Block 396-502
InfoVehicle Info Needed
PATRIOT EXHAUSTPART NUMBER: 737-H8005

Weld-Up Header Race Kit Chevy Big Block 396-502

$31624
ShippingShips on 11/03/2026
Lowest PriceLowest Price Guarantee
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$12725
Made in USA
Open-Wheel Long Tube Weld-Up Header Kit Primary O.D. 2 in. & 3 1/2 in. Collector

555-31884

Open-Wheel Long Tube Weld-Up Header Kit Primary O.D. 2 in. & 3 1/2 in. Collector

$18899

Weld-Up Header Race Kits
    Weld-Up Header Race Kit
  • Chevy Big Block 396-502
  • 2'' Tube Diameter
  • 3-1/2'' Collector
  • Collector Type: Weld-On
  • Port Shape: SAP

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

    Patriot Exhaust Weld-Up Header Race Kits work great for racers who need to build custom headers when a specfic fit header is not availble. Kits include mandrel bent one piece primaries, two 3/8" precision machined flanges, and your choice of weld-on or slip-on collectors. The unique long transition design of the collectors provides better flow. Mounting bolts, gaskets and collector locking tabs (slip-on style only) are also included.
Part TypeHeader
Product LinePatriot Exhaust Weld-Up Header Race Kits
BrandPATRIOT EXHAUST
Package Height12.0
Package Width20.0
Package Length25.0
Weight38.1 PG
Part CategoryPerformance Parts
Header FinishNatural
QuantitySold as a kit
Bolts/Studs IncludedYes
Cylinder Head Port ShapeRound
Transmission Mount IncludedNo
Header MaterialSteel
Gaskets IncludedYes
Weld-UpYes
Collector AttachmentSlip fit
Flange StyleStandard
TunedNo
Collector Diameter3.5 in (88.9 mm)
Motor Mounts IncludedNo
Part FitmentSemi Universal
Reducers IncludedNo
Primary Tube Gauge18-gauge
Header StyleFull-length
Cross Over Pipe IncludedNo
Catalytic Converter(S) IncludedNo
Primary Tube Diameter2 in (50.8 mm)
Vendor Part NumberH8005
Package Qty1
Package TypeEA

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Some parts are not legal for use in California or other states with similar laws / regulations
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